摘要
分解H桥级联型逆变器结构,其实质可等效为多个三电平逆变器的叠加。利用三电平逆变器空间矢量调制(SVM)技术来研究级联型逆变器SVM,可简化其矢量的分析与求取。三电平逆变器在传统的SVM中扇区定位与矢量作用时间计算复杂,为了简化其矢量的求取,研究了其在45°旋转坐标平面中基于三电平逆变器的SVM。最后,通过实验验证了所提方法的正确性。
After decomposition the structure of H-bridge cascaded inverter, its essence can be equivalented to the su- perposition of more three-level inverters.h is able to simplify the analysis and seek for cascaded inverter by using three-level inverter space vector modulation （SVM） techniques.It is complex to find sector and to calculate action time of vector for three-level inverter.In order to simplify the strike of the vector,the SVM of three-level inverter based on the rotation coordinate plane of 45 o is studied.Finally, experimental results verify the correctness of the pro- posed method.
出处
《电力电子技术》
CSCD
北大核心
2012年第8期55-57,共3页
Power Electronics
关键词
逆变器
空间矢量调制
三电平
inverter
space vector modulation
three-level
